Physician Profile

Ernesto Tan, MD

Unclaimed Profile

About Dr. Tan

Based in Lockport, IL, Ernesto Tan, MD is listed in the NPI registry under urology. According to Medicare claims data, Ernesto cared for 35 Medicare patients across 48 services. The services billed most often include subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes and diagnostic exam of bladder and urethra using an endoscope.

Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.

Education & Training

Medical School Other Graduated: 1972

Specialty

Urology (Primary)

Credentials & Licensing

IL license036049705
NPI1699882084
NPI issued08/23/2006

License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.

Medicare information

Accepts Medicare assignmentYes
Medicare opt-outNo
Can order and refer in MedicareYes

Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.

Common questions

What does Dr. Tan specialize in?

Dr. Tan is an urologist in Lockport, IL. That is the designation recorded for this NPI in the federal registry, where it is listed as “Urology”.

NPI registry

Where is Dr. Tan located?

Dr. Tan is listed at 300 Read St Ste A, Lockport, IL 60441. Addresses come from the NPI registry and can lag a move, so confirm before travelling.

NPI registry

What is Dr. Tan's phone number?

The number on file is (815) 741-1020. Guide.md cannot book appointments or pass on messages — please call the office directly.

NPI registry

What is Dr. Tan's NPI number?

Dr. Tan's National Provider Identifier is 1699882084. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.

NPI registry

Where did Dr. Tan go to medical school?

Dr. Tan attended Other, graduating in 1972. This comes from the CMS National Downloadable File.

CMS public data

How long has Dr. Tan been practicing?

Dr. Tan has 54 years experience. Calculated from a graduation year of 1972, reported in the CMS National Downloadable File.

CMS public data

What does Dr. Tan do most often?

According to Medicare billing data, Dr. Tan performs procedures including diagnostic exam of bladder and urethra using an endoscope, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.

Medicare claims

Has Dr. Tan confirmed this information?

Not yet. This profile is built from public federal data and has not been confirmed by Dr. Tan. If this is you, claiming it is free.

Guide.md

Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.